Question: What sports team did Magic Johnson belong to until the beginning of 1991?
Paraphrase: Magic Johnson belonged to which team until the beginning of 1991?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q134183 p:P54 ?s . ?s ps:P54 ?obj . ?s pq:P582 ?x filter(contains(YEAR(?x),'1991')) }